Cisco Switches :: Linksys SRW2016 Switch Serial Console Not Working
Jan 5, 2011
I have had the switch for about 2 years and recently moved. The manual specifies:
38400 bps and 8-n-1 serial port settings using DB9F to DB9F cable.
I have done this and tried using multiple machines/ports/cables as well as several peices of software (minicom, PuTTy, hyperterminal) and none give me any output from the switch at all.
The trouble is that in its original config, it had 1 port locked into its own VLAN for management with port security and an obscure RFC1918 IP address which I cannot recall for the life of me.
At this point, I have no access to TCP/IP management so serial console is my last hope and is not working.
I have tried to update the firmware of my srw2016 but after this update my switch wouldn't start again.
It shows this message in my console: Exit from boot menu. Continue with flow. Preparing to decompress... Image in address: 0x0 - Check Sum error! Please download a new image. Downloading code using XMODEM.
I recently acquired a used SRW2016 in perfect working order (I checked it) and then made the mistake of trying to update the software image. Since then I cannot get any image to boot and cannot install a new one despite many attempts with XMODEM.The switch is hardware version 1.1 with Boot image "BOOT Software Version 1.0.0.03 Built 08-Jun-2004 09:48:10" I've tried installing a new boot image via XMODEM: [code]
We are having a problem with our ACS and switch configuration.Basically if the switches lose connectivity to the ACS server the switches completely lock up, you can’t even console onto the switches.We want them to use the fall back username and password when this happens.
I can access the web console, and also have telnet access but only to a VT100 menu system - How do I access the full console command prompt (without using the serial console connection)?
I want to configure my SRW248G4 switch thru console port. Unfortunately in this switch there is no RJ45 console port input, I can only see cosole port that is look like RS232 input. I bought two standard cisco console cables that have one end with db9 and one with RJ45.
Now I have and idea to put one end of one cable (db9) to switch, and one end (db9) of second cable in my computer (COM input/output)
I need to connect two RJ45 together - this is not a problem, I know how to do this. Here is the question :I know how pinout in my computer look like but i can't find pinout of console port in my SRW248G4. There is many pictures in Internet, for many Cisco devices but this isn't working. Maybe in LINKSYS pinout look different ?
I am going to purchase SF 300 24p POE Switch and if this Switch supports the configuration via console? As i have ESW-500 Series switches and it does not support console.
i'm trying to enable command authorization for ssh as well as console access to a Nexus 7010 box (version 5.0). Following is the config:
aaa group server tacacs+ ACS5-1 server 10.12.19.11 server 10.12.19.12 source-interface loopback0 snmp-server enable traps aaa server-state-change aaa authentication login default group ACS5-1 local
[code]....
As you can see, the default group configuration ACS5-1 for authenticatoin has applied to both defaults and console. But the command authorization does not appear to be applied to the console. As a result, when i login from the console and get authenticated, the command authorization does not trigger and i can run commands I'm not supposed to. In the configuration, I do not see "aaa authorization console" option unlike we have in IOS.
I need to connect to the console port on a cisco firewall, an rj-45 connector. The cable is a rj-45 at one end and a serial on the other. My PC has no serial port and I am unable to use the provided cable to connect to the firewall appliance. Is there software that can allow serial over my PC's Ethernet? I really don't have time to order a serial card for my PC.
I am having issue consoling into Cisco 3560V2 using console cable attached to USB to serial adapter.using putty.when i try to login on the putty i only see black screen.
I have lost the original console cable to the Cisco Linksys SRW2048 and was wondering if I can use the Cisco console cable or can a regular serial cable with female ends will work?
What kind of cable is required to connect to the Console on a Linksys SRW2024 switch ? ( I've lost the original cable )I use the following settings: Speed 38400, 8 bits, no parity, no flow control and stop bits 1I have tried a serial cable, no go.I have tried a null modem cable with partial handshaking, no go.I have tried a null modem cable with full handshaking, no go.For the null modem cables, if I use it to connect between computers using hyperterminal it works very well. What I type on one computer appears on the other computer's screen.However, I can't get anything out of the switch. I've tried pressing Enter repeatedly, resetting the switch with the Console cable on, etc.
We just purchased 8 managed switches POE to swap out our existing in preparation for our new phone system. We installed them all after configuring with static IP. Deployed... and all but two work fine. Any tips for troubleshooting why two of them do not work? There are a couple other switches in the building. Could it be that a switch "upstream" from the two non-functioning switches is causing an issue? If so, how do I find out? When we put back the two "dumb" switches all was fine.
I am in the process of trying to replace a modem/router,the switch does not work with the new modem/router although if I connect the modem/router directly to my computer it works fine,so its not a router issue.I suspect that the settings need to be changed in the switch to allow the new router to work ?
I just recently bought a new Cisco 2611 for my home lab and am having trouble getting the serial port to work. I have tried multiple things such as erase startup, switching the cables to rule them out, and even changing IP addresses but none worked. [code]
My Wifi internet was working fine 12 hrs ago; now I can only use it with wire.I uninstall 2.0 and install Asus wireless console 3.0 but still not working, Fn+F2 not working either.
I configure my Cisco ACS5.2 using Command set policy and providing Shell access 15.I allow user only “show * ” command.It works fine with Telnet. User Group cannot execute any command apart from “Show * ”But when I connect the device using Console user group has full permission on the devices.I believe Command set policy is not working on Console. Is it normal behavior or do I need to update some changes in ACS or Network devices ?
My network device configuration is as below :
tacacs-server host 10.x.x.x key test123 tacacs-server host 10.y.y.y key test123 tacacs-server timeout 1 aaa authentication login default group tacacs+ local aaa authentication enable default group tacacs+ enable aaa accounting exec default start-stop group tacacs+ aaa accounting commands 1 default start-stop group tacacs+
We have a 6509 running 5.4(2). We have set up a hyperterm session and connect to multiple devices, then we get to the 6509 and it will not work. When we reload the 6509 and we are consoled into it, we get data until it is finished reloading. Then the console connections is no longer there.
implementation of the cisco CSS 11501 boxes available as spare on our site into production for an application evry thing worked as expected. i was able to telnet the active/master box and was able to console both master and backup box from the console port.however a week post the activity im faced with this weird problem where im not able to take console or the telnet access of my primary/active box.The boxes are working in BOX-to-BOX redundancy and now im not able to telnet or console my active/master box. The telnet and console window prompts me for username and password and after entering the credentials nothing happens. no prompt or no error message is displayed.
The telnet primary authentication is via tacacs and secondary is via local. however for console im not using any method for primay authentication and local for secondary authentication. however i can successfully console my backup box. below are my obsrvations 1. the left and right status LED on the active CSS box is OFF.- it means my CSS 11501 failed and has no power. 2. upon firing the rcmd command with show line command on backup box i see that the telnet sessions and console session is established with the master box3. the redundancy state of the active box says it is master and has not changed state since my last activity, no application issue reported, all the services are active on the active box and also i can ping the active box ip address from my backup box over which box to box redundancy is established. This confirms the active box is functioning well 4. i initially thought the telnet sessions are not getting cleared, however the show line cmd with the rcmd cmd on the backup box confirms this is not happening. now im stuck as the active box cannot be accessed at all via console or telnet. i was thinking of below steps to be carried out.1. to failover the boxes and make the backup as master2. then try to take the faulty box off the network and troubleshoot (are there any other commands that i should use to troubleshoot)3. if nothing works try rebooting the box and check
NOTE: the software running is version 7.20.30.3 with standard feature set. we are not using cvdm or the CSS GUI. we could access the css initially on CSS gui and that is also not working now.
My company just bought a SF300-24P, got it configured without much issue. Today I try to get into it and I can't. Tried via HTTP and console and nothing happens. Decided to try to reset it using the button on the front. Using the documentation, I held down the button for over 10 seconds. Didn't reset to factory defaults, tried again and rebooted it, still nothing. What I am I doing wrong. Also nothing comes up on console window and I'm using the setting for Hyper Terminal that the documentation says I should use.
The switch functions and operates fine but I can no longer login to the webview(GUI) and when I use a serial cable to console in to it, it shows nothing on the hyperterminal meaning no login. How can I get back into the switch to manage it or reset it back to factory settings? I kept the default IP address and I enabled HTTPS to login by gui, well I got in by HTTPS so I went in to turn that setting off and hit apply and now I can't log into it at all.
I have issue with Cisco Router 2801's Console Port. My student was doing a lab and he said during configuration, Console Port stopped responding. He was in middle of configuration, so now at present, only telnet is able to login on "R2>" user mode, enable password is not set, so getting "R2>en % No password set R2>" I have tried different terminal software but no output from Console Port, changed the Console Cables, replace with working console cables, change speed (baud) settings. Also tried to connect same console with "AUX" port and got same error mentioned above. AUX Port responds but I am not able to change mode (R2#) because of incomplete running-config. it seems "Console Port" is physically damaged.
I have a client whom has asked me to enable web management on some of his 2960 switches. I did not think this was going to be an issue, and so I told the customer I would set this up for him.
Much to my dismay, I have been able to get http and https enabled, and then authenticating locally for the HTTP access. I then come to the screen once authenticated which is shown below:
The issue is that when I select "Web Console", it gives me a "Web Page Cannot be found".
I can't connect to the console of switch cisco sge2010, I tried several console cables and none worked for me, I followed step by step manuals and nothing.
Also try the web 192.168.1.254 according to the manual but when I connect from the laptop to do ping to the switch doesnt work.
I am having FWSM in active /standby mode deployed on two different cat 6k chassis. Unable to access the fwsm module from switch using ' session module mod_no processor 1 ", it throws error " % telnet connections not permitted from this terminal" Running Version 3.2.6 on fwsm, Cat 6k is running 12.2.33.SXH1,
switch#session slot 3 processor 1 The default escape character is Ctrl-^, then x. You can also type 'exit' at the remote prompt to end the session % telnet connections not permitted from this terminal ---------------------------------------------------------------------------
have allowed telnet on line vty, configuration on Line vty is simple allowing all transport protocols
line vty 0 4 exec-timeout 5 0 transport input all transport output all line vty 5 15 exec-timeout 5 0 transport input all transport output all
I have 2960 switch and i can't access it using my console cable .I can access other switches in my network ( 3560 & 2960 ) but i can't access only this switch.may be the console port in the switch damaged? or it's a bug ?? !!! although the switch is worked normally.
I am not getting interface up/down logs in my switch console through show logging command. Switch model cisco WS-C4506-E and IOS :- cat4500e-ipbasek9-mz.122-53.SG3.bin. I have done below mention configurations, we can't configure logging level beyond informational. [code]
